Sorry my error, maxlength doesn't work on textarea.
Try the link below, it has a counter and also alerts are XX characters have been entered, this should acheive what you require
http://inmyexperience.com/archives/000327.shtml

CSS is a visual language used to classify objects and define rules about how they should be displayed. CSS skills aren’t restricted to developers anymore, there is a big benefit to having a basic understanding of the language, regardless of your occ…

Is your Office 365 signature not working the way you want it to? Are signature updates taking up too much of your time? Let's run through the most common problems that an IT administrator can encounter when dealing with Office 365 email signatures.

In this tutorial viewers will learn how to style a decorative dropcap for the first letter in a paragraph using CSS.
In CSS, create a new paragraph class by typing "p.fancy": Then, to style only the first letter of the first sentence, include the ps…

The viewer will learn the basics of jQuery including how to code hide show and toggles.
Reference your jQuery libraries:
(CODE)
Include your new external js/jQuery file:
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Write your first lines of code to setup your site for jQuery…